Access count of this item: 51
|Other Titles:||ON THE OBSERVATION OF GUST FRONT II|
|Authors:||石﨑, 溌雄 |
|Author's alias:||ISHIZAKI, Hatsuo|
|Journal title:||京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B|
|Abstract:||Field observation on the structure of the gust front is performed at Shionomisaki since 1980.The phenomena of the gust front can be detected by the array of three cup anemometers whenthe averaging time to estimate the wind speed is larger than 1.5 sec if the wind speed is over 10 m/s.The results obtained in the case of 13 m/s mean wind speed are as follows, 1) The gust front has a spatial expanse 20-30 m wide in lateral wind direction.2) The gust front exists in front of a strong wind region, where the horizontal gradient of windspeed in the mean wind direction is 0.36 (m/s) /m the maximum.3) The gust front changes its own shape in moving down to the leeward and the moving speed isnot necessarily equal to the mean wind speed along the gust front path.|
|Appears in Collections:||No.24 B-1|
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